The sons of a 69-year-old woman who perished while prospecting in Queensland's Gulf Country remember their selfless and generous mum as a "hero".

Experienced geologists Kristine Starr and her companion Garry Edser died on Esmeralda Station near Croydon earlier this month.

Eager for the memory of their mother to be more than the "unidentified" woman she had been referred to since the incident, Scott and Glen Morrison have come forward to honour the much-loved grandmother, friend and businesswoman.

'Can't believe we're sitting here'

The brothers are in Cairns after spending the last few days in Croydon, about 400 kilometres west, where they retraced the final moments of their mother and her business partner of 20 years.

Ms Starr and Mr Edser were no strangers to Croydon.

They had a tenement on Esmeralda Station, about 100km from the town where they would frequently visit.            

"We spoke on the Friday night [November 9]. They found some new evidence of what they were looking for and that she would be home, but unfortunately, that day never came."

Their bodies were found just 2.5km from their car on Esmeralda station on November 14 after a search involving police, the State Emergency Service (SES) and the community.

The SES said at the time that it appeared the pair perished after going "up the wrong creek heading back to their vehicle".

Glen said while it did not make the loss any easier, after visiting the remote area he could understand how they became disoriented.

He recalled walking 50 metres from the car before getting lost in the hot, dry, indistinguishable landscape of the outback.

"We all looked around and turned to each other and couldn't see the car," he said.

The men said the heat was also unrelenting when their mother was in the field.

"When I spoke to her [mum] on the Friday, she mentioned it was 45 degrees. With the heat coming off the ground, it's probably closer to 60," Scott said.

'The most generous person I know'

Widowed at 23, the boys said their mother was a woman for whom kindness underpinned her every action.

Scott said the single mother "sacrificed everything" for them.

"She made it feel like we didn't have [just] one parent."

The men said her kindness and generosity extended beyond the family to her friends and local NDIS centre where she regularly volunteered.

"She was the most generous person that I probably know," Glen said.

They said the very reason Ms Starr found herself prospecting on the remote plains of Esmeralda Station was to provide a better life for her five grandchildren.

"Everything that she's done, you know, since the grandchildren were born, is all about them," Scott  said.

As police prepare a report for the coroner, the men are working toward a permanent memorial to honour the pair in the tiny town of Croydon.

"We don't want their names just to known as the two people that died out in the field," Glen said.

"We want to have a memorial, something that is meaningful and where people can remember them."

As the family of 10 prepares to lay Ms Starr to rest, Scott said she would forever be remembered as a kind, loyal and, intelligent woman.

"We miss her terribly," he said.